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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sommerville, David Bradley, Robert Mailly, Daniel |
| Copyright Year | 2004 |
| Abstract | Seedlings of yellow birch (Betula alleghaniensis Britton) and sugar maple (Acer saccharum Marsh.) were grown for 2 years in mono-culture and mixed-culture and at three fertility levels. Following the second growing season, senescent leaves were analysed for N concentration, acid hydrolysable substances (AHS), and nonhydrolysable remains (NHR). A litter sub-sample was then inoculated with indigenous soil microflora, incubated 14 weeks, and mass loss was measured. Litter-N was significantly higher at medium than at poor fertility, as well as in yellow birch than in sugar maple litter. The species effect on litter-N increased with increasing fertility. At medium fertility, litter-N of sugar maple litter was lower in mixed-culture than in mono-culture. AHS, NHR as well the NHR/N ratio were significantly higher in yellow birch than in sugar maple litter. At medium fertility, the NHR/N ratio of sugar maple litter was significantly lower in mono-culture than in mixed-culture. Mass loss was significantly greater at medium and rich fertility than at poor fertility, and in yellow birch than in sugar maple litter. At poor fertility, mixed-litter decomposed at a rate comparable to yellow birch, whereas at medium and rich fertility, mixed-litter decomposed at a rate comparable to sugar maple. There was a significant positive relationship between litter-N and mass loss. A similar positive relationship between NHR and mass loss was presumed to be a “species” effect on decomposition. Results support the hypothesis that species × fertility and species × mixture interactions can be important determinants of litter quality and, by implication, of site nutrient cycling. |
| Starting Page | 608 |
| Ending Page | 613 |
| Page Count | 6 |
| File Format | |
| ISSN | 09311890 |
| Journal | Trees |
| Volume Number | 18 |
| Issue Number | 5 |
| e-ISSN | 14322285 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2004-07-30 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Acer saccharum Betula alleghaniensis Decomposition Litter quality Mixed species |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Physiology Plant Science Forestry |
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